Who called from 3054550398

I'd think it's real. Looks like this number is connected to  
Turner Guilford Knight Correctional Center in Miami-Dade County of Florida.

missed called, wondering from who?

This number has called me 3 times today - wanting me to open a debit card or credit card account so I can speak with an incarcerated family member.
I have no one incarcerated and want to be left alone !

It's one of those inmate scams !  If you listen it states to open an account with a credit card so you can speak to the person incarcerated.

Inmate call from tgkcc in miami, fl. Most likely a family member or friend letting you know they've been arrested. But if you miss the call and call the number back there is a recording that states "this number is no longer in service"